1,Accurate filtration 2,High efficient backwash 3,Automatic operation and continuous supply 4, ... , backwash water consumption is only 5% of the output quantity.2,Automatic operation, regular examination, low maintanence. The system can work ... Technical advantages: 1.Filtration effect: precise, stable, effective, no penetration 2.Automatic backwash: highly effective 3.Continous output: pressure loss is ...